tetra_op

液体点滴液位控制（电设题）基于飞思卡尔DG128单片机，通过步进电机控制药瓶的高度来控制点滴的速度(Drip liquid level control (electric facilities title) based on Freescale DG128 microcontroller, stepper motor control through the height of the bottle to control the speed of drip)

stm32F407低功耗之停止模式，在正点原子开发板探索者上运行可靠，能用外部任意终端唤醒(stm32f407 Low power stop mode)

对OLED进行显示，分别用IIC的以及SPI的来进行测试(Display OLED and test it with IIC and SPI respectively)

在ARM中对Ｔｅｔｒａ编码进行了thumb优化(on ARM Tetra coding of the thumb Optimization)

设计的是一种基于ARM的自反馈程控放大器，它由ARM主控模块、放大模块、滤波模块、电源模块、键盘和液晶显示模块构成。以ARM1138作为主控芯片，通过对输出信号进行数据采集及处理，实现放大器增益校正与闭环控制，达到精确程控放大器增益和实时显示的目的(Design is a programmable ARM-based self-feedback amplifier, which consists of ARM control module, amplifier modules, filter modules, power modules, keyboard and LCD display modules. To ARM1138 as the master chip, the output signal by data acquisition and processing, calibration and closed-loop amplifier gain control, programmable amplifier gain to achieve accurate and real-time display purposes)

英蓓特CM0（蓝精灵）光盘附带的开发板例程。 适用于LPC11xx系列。 (Embest CM0 (Smurfs) that came with the CD to develop routines. For LPC11xx series.)

说明：  矩阵键盘 stm32 可以使用 4*4矩阵键盘驱动(stm32 key The matrix keyboard stm32 may use a 4*4 matrix keyboard driver)

ST32F407建立新的模板工程，合适初学者练习(The ST32F407 create a new template project, suitable for beginners to practice)

说明：  自己写的基于GPS的通讯倒计时程序。可以直接使用，按键调整时间。希望对初学者有所帮助(The base of GPS communication count time program, maybe help the first person in this project. the key can adjust the time.)

该程序的主要功能是在STM32上移植ucgui,在STM32中显示。(The main function of this program is to transplant ucgui on the STM32, STM32 display in the.)